I kinda know Ian.
We did the Sherman photo shoot together, he lived at 19th Ave in the City for several years, we sailed lots of surf spots together.
I can't post pictures, but think of a 15" tall fin with a 3.5" base.
I also have a Meritex swept blade at 14" length, but with a 3.25 base.
Those two fins are considered "high aspect ratio" fins. They don't make them like that anymore because they typically have very narrow wind ranges, and work best when perfectly slightly overpowered.

You cannot post new topics in this forumYou cannot reply to topics in this forumYou cannot edit your posts in this forumYou cannot delete your posts in this forumYou cannot vote in polls in this forumYou can attach files in this forumYou can download files in this forum